User manual

得伯乐科技有限公司
DBL Technology Limited GoIP User Manual
Web: www.dbltek.com
Tel: [phone]
Max-Forwards: 30
User-Agent: DBL
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REFER, REGISTER,
MESSAGE, INFO, SUBSCRIBE
Content-Type: application/sdp
Content-Length: 226
Mode 3:
When a short message of “8675588228822” is sent from the mobile phone number
([phone] to the GoIP, the GoIP will send the following call requests. When the GoIP
sends a call request through the SIP number of the GoIP, the GoIP will automatically add the number
of the short message sender to the PSTN Forwarding Number in Call Forwarding (VoIP Incoming
Call, Forwarding to the PSTN Immediately);
In this mode, when the GoIP receives the call from the SIP server, the GoIP will forward the call
to the short message sending equipment through the GSM network.
The SMS dial prefix is still valid in this mode;
The call request signaling in this mode is as follows:
Sending Message to 192.168.2.1:5060:
INVITE sip:8675588228822*8613800000000@192.168.2.1:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 192.168.2.237:5060;branch=z9hG4bK363969813
From: <sip:20001@192.168.2.1:5060>;user=phone;tag=65248630
To: <sip:8675588228822*8613902994477@192.168.2.1>
Call-ID: 117025903@192.168.2.237